feat(agent): 移除未使用的导入并简化条件表达式

src/memory/conversation.rs

@@ -174,8 +174,8 @@ impl ConversationMemory {
             }
         }
 
-        if let Some(ref compact_config) = self.config.compact_config {
-            if should_compact(&self.messages, compact_config, &self.compact_state) {
+        if let Some(ref compact_config) = self.config.compact_config
+            && should_compact(&self.messages, compact_config, &self.compact_state) {
                 let keep_recent = compact_config.keep_recent;
                 let freed = microcompact(&mut self.messages, keep_recent);
                 if freed > 0 {
@@ -184,7 +184,6 @@ impl ConversationMemory {
                     let _ = self.compact_state.record_failure();
                 }
             }
-        }
     }
 }
 

src/memory/knowledge.rs

@@ -123,14 +123,12 @@ impl KnowledgeStore {
         let mut results = Vec::new();
         let index = self.index.lock().unwrap();
         for entry in index.iter() {
-            if entry.title.to_lowercase().contains(&needle)
+            if (entry.title.to_lowercase().contains(&needle)
                 || entry.summary.to_lowercase().contains(&needle)
-                || entry.tags.iter().any(|t| t.to_lowercase().contains(&needle))
-            {
-                if let Some(page) = self.get_page(&entry.id).await? {
+                || entry.tags.iter().any(|t| t.to_lowercase().contains(&needle)))
+                && let Some(page) = self.get_page(&entry.id).await? {
                     results.push(page);
                 }
-            }
         }
         Ok(results)
     }